mirror of
https://github.com/Next-Flip/Momentum-Firmware.git
synced 2026-04-24 03:29:57 -07:00
280 lines
10 KiB
C
280 lines
10 KiB
C
#include "acurite_986.h"
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#define TAG "WSProtocolAcurite_986"
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/*
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* Help
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* https://github.com/merbanan/rtl_433/blob/5bef4e43133ac4c0e2d18d36f87c52b4f9458453/src/devices/acurite.c#L1644
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*
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* 0110 0100 | 1010 1011 | 0110 0010 | 0000 0000 | 0111 0110
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* tttt tttt | IIII IIII | iiii iiii | nbuu uuuu | cccc cccc
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* - t: temperature in °F
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* - I: identification (high byte)
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* - i: identification (low byte)
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* - n: sensor number
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* - b: battery low flag to indicate low battery voltage
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* - u: unknown
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* - c: CRC (CRC-8 poly 0x07, little-endian)
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*
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* bits are sent and shown above LSB first
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* identification changes on battery switch
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*/
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static const SubGhzBlockConst ws_protocol_acurite_986_const = {
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.te_short = 800,
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.te_long = 1750,
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.te_delta = 50,
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.min_count_bit_for_found = 40,
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};
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struct WSProtocolDecoderAcurite_986 {
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SubGhzProtocolDecoderBase base;
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SubGhzBlockDecoder decoder;
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WSBlockGeneric generic;
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};
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struct WSProtocolEncoderAcurite_986 {
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SubGhzProtocolEncoderBase base;
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SubGhzProtocolBlockEncoder encoder;
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WSBlockGeneric generic;
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};
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typedef enum {
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Acurite_986DecoderStepReset = 0,
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Acurite_986DecoderStepSync1,
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Acurite_986DecoderStepSync2,
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Acurite_986DecoderStepSync3,
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Acurite_986DecoderStepSaveDuration,
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Acurite_986DecoderStepCheckDuration,
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} Acurite_986DecoderStep;
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const SubGhzProtocolDecoder ws_protocol_acurite_986_decoder = {
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.alloc = ws_protocol_decoder_acurite_986_alloc,
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.free = ws_protocol_decoder_acurite_986_free,
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.feed = ws_protocol_decoder_acurite_986_feed,
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.reset = ws_protocol_decoder_acurite_986_reset,
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.get_hash_data = NULL,
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.get_hash_data_long = ws_protocol_decoder_acurite_986_get_hash_data,
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.serialize = ws_protocol_decoder_acurite_986_serialize,
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.deserialize = ws_protocol_decoder_acurite_986_deserialize,
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.get_string = ws_protocol_decoder_acurite_986_get_string,
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.get_string_brief = NULL,
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};
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const SubGhzProtocolEncoder ws_protocol_acurite_986_encoder = {
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.alloc = NULL,
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.free = NULL,
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.deserialize = NULL,
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.stop = NULL,
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.yield = NULL,
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};
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const SubGhzProtocol ws_protocol_acurite_986 = {
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.name = WS_PROTOCOL_ACURITE_986_NAME,
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.type = SubGhzProtocolTypeStatic,
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.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_315 | SubGhzProtocolFlag_868 |
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SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable | SubGhzProtocolFlag_Load |
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SubGhzProtocolFlag_Save,
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.decoder = &ws_protocol_acurite_986_decoder,
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.encoder = &ws_protocol_acurite_986_encoder,
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.filter = SubGhzProtocolFilter_Weather,
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};
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void* ws_protocol_decoder_acurite_986_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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WSProtocolDecoderAcurite_986* instance = malloc(sizeof(WSProtocolDecoderAcurite_986));
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instance->base.protocol = &ws_protocol_acurite_986;
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instance->generic.protocol_name = instance->base.protocol->name;
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return instance;
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}
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void ws_protocol_decoder_acurite_986_free(void* context) {
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furi_assert(context);
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WSProtocolDecoderAcurite_986* instance = context;
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free(instance);
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}
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void ws_protocol_decoder_acurite_986_reset(void* context) {
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furi_assert(context);
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WSProtocolDecoderAcurite_986* instance = context;
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instance->decoder.parser_step = Acurite_986DecoderStepReset;
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}
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static bool ws_protocol_acurite_986_check(WSProtocolDecoderAcurite_986* instance) {
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if(!instance->decoder.decode_data) return false;
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uint8_t msg[] = {
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instance->decoder.decode_data >> 32,
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instance->decoder.decode_data >> 24,
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instance->decoder.decode_data >> 16,
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instance->decoder.decode_data >> 8};
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uint8_t crc = subghz_protocol_blocks_crc8(msg, 4, 0x07, 0x00);
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return (crc == (instance->decoder.decode_data & 0xFF));
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}
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/**
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* Analysis of received data
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* @param instance Pointer to a WSBlockGeneric* instance
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*/
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static void ws_protocol_acurite_986_remote_controller(WSBlockGeneric* instance) {
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int temp;
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instance->id = subghz_protocol_blocks_reverse_key(instance->data >> 24, 8);
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instance->id = (instance->id << 8) |
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subghz_protocol_blocks_reverse_key(instance->data >> 16, 8);
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instance->battery_low = (instance->data >> 14) & 1;
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instance->channel = ((instance->data >> 15) & 1) + 1;
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temp = subghz_protocol_blocks_reverse_key(instance->data >> 32, 8);
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if(temp & 0x80) {
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temp = -(temp & 0x7F);
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}
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instance->temp = (float)temp;
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instance->btn = WS_NO_BTN;
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instance->humidity = WS_NO_HUMIDITY;
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}
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void ws_protocol_decoder_acurite_986_feed(void* context, bool level, uint32_t duration) {
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furi_assert(context);
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WSProtocolDecoderAcurite_986* instance = context;
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switch(instance->decoder.parser_step) {
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case Acurite_986DecoderStepReset:
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if((!level) && (DURATION_DIFF(duration, ws_protocol_acurite_986_const.te_long) <
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ws_protocol_acurite_986_const.te_delta * 15)) {
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//Found 1st sync bit
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instance->decoder.parser_step = Acurite_986DecoderStepSync1;
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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 0;
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}
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break;
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case Acurite_986DecoderStepSync1:
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if(DURATION_DIFF(duration, ws_protocol_acurite_986_const.te_long) <
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ws_protocol_acurite_986_const.te_delta * 15) {
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if(!level) {
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instance->decoder.parser_step = Acurite_986DecoderStepSync2;
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}
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} else {
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instance->decoder.parser_step = Acurite_986DecoderStepReset;
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}
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break;
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case Acurite_986DecoderStepSync2:
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if(DURATION_DIFF(duration, ws_protocol_acurite_986_const.te_long) <
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ws_protocol_acurite_986_const.te_delta * 15) {
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if(!level) {
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instance->decoder.parser_step = Acurite_986DecoderStepSync3;
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}
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} else {
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instance->decoder.parser_step = Acurite_986DecoderStepReset;
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}
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break;
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case Acurite_986DecoderStepSync3:
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if(DURATION_DIFF(duration, ws_protocol_acurite_986_const.te_long) <
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ws_protocol_acurite_986_const.te_delta * 15) {
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if(!level) {
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instance->decoder.parser_step = Acurite_986DecoderStepSaveDuration;
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}
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} else {
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instance->decoder.parser_step = Acurite_986DecoderStepReset;
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}
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break;
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case Acurite_986DecoderStepSaveDuration:
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if(level) {
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instance->decoder.te_last = duration;
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instance->decoder.parser_step = Acurite_986DecoderStepCheckDuration;
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} else {
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instance->decoder.parser_step = Acurite_986DecoderStepReset;
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}
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break;
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case Acurite_986DecoderStepCheckDuration:
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if(!level) {
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if(DURATION_DIFF(duration, ws_protocol_acurite_986_const.te_short) <
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ws_protocol_acurite_986_const.te_delta * 10) {
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if(duration < ws_protocol_acurite_986_const.te_short) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 0);
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instance->decoder.parser_step = Acurite_986DecoderStepSaveDuration;
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} else {
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subghz_protocol_blocks_add_bit(&instance->decoder, 1);
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instance->decoder.parser_step = Acurite_986DecoderStepSaveDuration;
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}
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} else {
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//Found syncPostfix
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instance->decoder.parser_step = Acurite_986DecoderStepReset;
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if((instance->decoder.decode_count_bit ==
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ws_protocol_acurite_986_const.min_count_bit_for_found) &&
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ws_protocol_acurite_986_check(instance)) {
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instance->generic.data = instance->decoder.decode_data;
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instance->generic.data_count_bit = instance->decoder.decode_count_bit;
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ws_protocol_acurite_986_remote_controller(&instance->generic);
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if(instance->base.callback)
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instance->base.callback(&instance->base, instance->base.context);
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}
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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 0;
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}
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} else {
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instance->decoder.parser_step = Acurite_986DecoderStepReset;
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}
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break;
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}
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}
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uint32_t ws_protocol_decoder_acurite_986_get_hash_data(void* context) {
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furi_assert(context);
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WSProtocolDecoderAcurite_986* instance = context;
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return subghz_protocol_blocks_get_hash_data_long(
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&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
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}
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SubGhzProtocolStatus ws_protocol_decoder_acurite_986_serialize(
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void* context,
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FlipperFormat* flipper_format,
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SubGhzRadioPreset* preset) {
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furi_assert(context);
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WSProtocolDecoderAcurite_986* instance = context;
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return ws_block_generic_serialize(&instance->generic, flipper_format, preset);
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}
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SubGhzProtocolStatus
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ws_protocol_decoder_acurite_986_deserialize(void* context, FlipperFormat* flipper_format) {
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furi_assert(context);
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WSProtocolDecoderAcurite_986* instance = context;
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return ws_block_generic_deserialize_check_count_bit(
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&instance->generic, flipper_format, ws_protocol_acurite_986_const.min_count_bit_for_found);
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}
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void ws_protocol_decoder_acurite_986_get_string(void* context, FuriString* output) {
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furi_assert(context);
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WSProtocolDecoderAcurite_986* instance = context;
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bool locale_is_metric = furi_hal_rtc_get_locale_units() == FuriHalRtcLocaleUnitsMetric;
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furi_string_cat_printf(
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output,
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"%s\r\n%dbit\r\n"
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"Key:0x%lX%08lX\r\n"
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"Sn:0x%lX Ch:%d Bat:%d\r\n"
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"Temp:%3.1f %c Hum:%d%%",
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instance->generic.protocol_name,
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instance->generic.data_count_bit,
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(uint32_t)(instance->generic.data >> 32),
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(uint32_t)(instance->generic.data),
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instance->generic.id,
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instance->generic.channel,
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instance->generic.battery_low,
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(double)(locale_is_metric ? locale_fahrenheit_to_celsius(instance->generic.temp) :
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instance->generic.temp),
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locale_is_metric ? 'C' : 'F',
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instance->generic.humidity);
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}
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